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use Illuminate\Validation\Rule;
'name' => ['required', Rule::unique('items')->ignore($this->id)],
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$rules = array("name"=>"required","email"=>"required|email|unique:students");
$messages = [
'name.required' => 'name field is required',
'email.required'=> 'email field is required',
'email.email'=> 'Please fill the correct email format',
'email.unique' => 'This email is already exits in the database'
];
$validator = Validator::make($request->all(),$rules,$messages);
if($validator->fails()):
return $validator->errors();
endif;